Yes, I'm using JPA in my code. This is the persistence.xml: <?xml version="1.0" encoding="UTF-8"?> | <persistence version="1.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"> | <persistence-unit name="AddressBook-ejbPU" transaction-type="JTA"> | <jta-data-source>java:/DefaultDS</jta-data-source> | <properties> | <property name="hibernate.hbm2ddl.auto" value="update"/> | </properties> | </persistence-unit> | </persistence> Help me... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4164397#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...